Home / 12,621.44-17,417.56-6,955.76

Finding the Fourth Proportional to 12,621.44, 17,417.56 and 6,955.76

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Solution

The fourth proportional to 12,621.44, 17,417.56 and 6,955.76 is: 9,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.44 : 17,417.56 = 6,955.76 : x
  2. Step 2: Convert to fraction form
    12,621.44/17,417.56 = 6,955.76/x
  3. Step 3: Cross multiply
    12,621.44x = 17,417.56 × 6,955.76
  4. Step 4: Simplify right side
    12,621.44x = 121,152,367.15
  5. Step 5: Solve for x
    x = 121,152,367.15/12,621.44
  6. Step 6: Final answer
    x = 9,598.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.